Virtual computer diagnostic system with comparative monitoring o

Details Virtual computer diagnostic system with comparative monitoring o Virtual computer diagnostic system with comparative monitoring o

1986-12-29

1989-03-07

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 130, G06F 946

Patent

active

048112763

ABSTRACT:
Operating systems of virtual machines periodically issue diagnostic instructions during the normal operation. A virtual machine control monitor selects the earliest one of monitoring times for virtual machines and sets it in the clock facility in a bare machine. If the monitor receives the diagnostic command from a virtual machine before expiration of the monitoring time, it re-sets the clock facility. Otherwise, the monitor issues a machine check interrupt command to the virtual machine in which the monitoring time has expired.

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patent: 4589093 (1986-05-01), Ippolito et al.
patent: 4674038 (1987-06-01), Brelsford et al.
patent: 4689739 (1987-08-01), Federico et al.

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